Finding the Fourth Proportional to 286,390.74, 395,175.34 and 165,508.71
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Solution
The fourth proportional to 286,390.74, 395,175.34 and 165,508.71 is: 228,376.66
Step by Step Solution
- Step 1: Write the proportion equation
286,390.74 : 395,175.34 = 165,508.71 : x - Step 2: Convert to fraction form
286,390.74/395,175.34 = 165,508.71/x - Step 3: Cross multiply
286,390.74x = 395,175.34 × 165,508.71 - Step 4: Simplify right side
286,390.74x = 65,404,960,747.21 - Step 5: Solve for x
x = 65,404,960,747.21/286,390.74 - Step 6: Final answer
x = 228,376.66
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.